8 In order to handle time outs and errors in an asynchronous application, a web application must implement which of the following interfaces?
(A) ServletContextListener
(B) ServletContextAttributeListener
(C) HttpSessionListener
(D) AsyncListener
(E) HttpSessionAttributeListener (F) AsyncContextListener

4 During initialization, a servlet finds that the database connection it requires is unavailable. As the system designer, you know that the database start up completes several minutes after the webcontainer initializes the servlet. How should this be handled? (A) Retry the connection until it is successful, then allow the init() method to complete. (B) Throw a ServletException (C) Throw the IOException (D) Throw an UnavailableException

5 Given a war file with the following structure where wf.jar contains a valid web-fragment.xml and the class MyServlet.class. The following is a snippet of web.xml The following is a snippet of web-fragment.xml The following is code snippet of MyServlet: What is the value of x inside doGet method of MyServlet? (A) 1 (B) 0 (C) -1 (D) -2 (E) -3

6 Which JSP standard action can be used to import content from a resource called foo.jsp? (A) ＜jsp:import file='foo.jsp' /＞ (B) ＜jsp:import page='foo.jsp' /＞ (C) ＜jsp:include page='foo.jsp' /＞ (D) ＜jsp:include file='foo.jsp' /＞ (E) ＜jsp:import＞foo.jsp＜/jsp:import＞ (F) ＜jsp:include＞foo.jsp＜/jsp:include＞

複選題7 Which two actions protect a resource file from direct HTTP access within a web application? (Choose two) (A) placing it in the /secure directory (B) placing it in the /WEB-INF directory (C) placing it in the /META-INF/secure directory (D) creating a ＜web-resource＞ element within the deployment descriptor (E) creating a ＜secure-resource＞ element within the deployment descriptor

9 Which three are true about the HttpServletRequestWrapper class? (Choose three.) (A) The HttpServletRequestWrapper is an example of the Decorator pattern. (B) The HttpServletRequestWrapper can be used to extend the functionality of a servlet request. (C) A subclass of HttpServletRequestWrapper CANNOT modify the behavior of the getReader method. (D) An HttpServletRequestWrapper may be used only by a class implement the javax.servlet.Filter interface. (E) An HttpServletRequestWrapper CANNOT be used on the request passed to the RequestDispatcher.interface. (F) An HttpServletRequestWrapper may modify the header of a request within an object implementing the javax.servlet.Filter interface.

10 Which is a benefit of precompiling a JSP page? (A) It avoids initialization on the first request. (B) It provides the ability to debug runtime errors in the application. (C) It provides better performance on the first request for the JSP page. (D) It avoids execution of the _jspService method on the first request.

11 Which java code snippet roles "MANAGER" and "EMPLOYEE" in a given application? (A) @DeclareRoles({ "MANAGER", "EMPLOYEE" })public class MyServlet extends HttpServlet {} (B) @SecurityRoles({ "MANAGER", "EMPLOYEE" })public class MyServlet extends HttpServlet {} (C) @DeclareRoles("MANAGER")@DeclareRoles("EMPLOYEE")public class MyServlet extends HttpServlet {} (D) @DeclareRole("MANAGER")@DeclareRole("EMPLOYEE")public class MyServlet extends HttpServlet {}

12 You are creating a web form with this HTML:  11. ＜form action="sendOrder.jsp"＞  12. ＜input type="text" name="creditCard"＞13. ＜input type="text" name="expirationDate"＞14. ＜input type="submit"＞  15. ＜/form＞ Which HTTP method is used when sending this request from the browser? (A) GET (B) PUT (C) POST (D) SEND (E) FORM

13 Given the element from the web application deployment descriptor: ＜jsp - property - group＞ ＜url - pattern＞/main/page1.jsp＜/url - pattern＞ ＜scripting - invalid＞true＜/scripting - invalid＞ ＜/jsp-property-group＞ And given that /main/page1.jsp contains: ＜% int i = 12; %＞ ＜b＞ ＜%= i %＞ ＜/b＞ What is the result? (A) ＜b＞ ＜b＞ (B) ＜b＞ l2 ＜/b＞ (C) The JSP fails to execute. (D) ＜% int i = 12 %＞＜b＞ ＜%= i % ＞ ＜ b＞

14 A Client wants to find out the size of an image file for which it has a URL, without downloading any of the bytes that comprise the image right away. Which HTTP method should it use? (A) GET (B) PUT (C) HEAD (D) DELETE